For a low-carbon steel part that will be put into a long lifetime use (10 years plus) what are recommended load cases to consider creep? The part I'm specifically working with will have a relatively low cycle count (20k load cycles over ten years) at about 10% of it's yield strength Loads are compression and tension loads with no load being it's 'normal' position.
Is there a percentage of yield strength that calculating creep worth considering? Are there material properties that are more critical? Is cycle count more critical?
And, how do you go about calculating creep? I vaguely remember doing this in university but can't find any simple questions.